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bgp_nb_config.c
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/*
* Bgp northbound config callbacks
* Copyright (C) 2020 Nvidia
* Chirag Shah
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "northbound.h"
#include "libfrr.h"
#include "log.h"
#include "bgpd/bgp_nb.h"
#include "bgpd/bgp_nb.h"
#include "bgpd/bgpd.h"
#include "bgpd/bgp_vty.h"
#include "bgpd/bgp_mplsvpn.h"
#include "bgpd/bgp_fsm.h"
#include "bgpd/bgp_addpath.h"
#include "bgpd/bgp_updgrp.h"
#include "bgpd/bgp_io.h"
FRR_CFG_DEFAULT_ULONG(BGP_CONNECT_RETRY,
{ .val_ulong = 10, .match_profile = "datacenter", },
{ .val_ulong = 120 },
)
FRR_CFG_DEFAULT_ULONG(BGP_HOLDTIME,
{ .val_ulong = 9, .match_profile = "datacenter", },
{ .val_ulong = 180 },
)
FRR_CFG_DEFAULT_ULONG(BGP_KEEPALIVE,
{ .val_ulong = 3, .match_profile = "datacenter", },
{ .val_ulong = 60 },
)
int routing_control_plane_protocols_name_validate(
struct nb_cb_create_args *args)
{
const char *name;
name = yang_dnode_get_string(args->dnode, "./name");
if (!strmatch(name, "bgp")) {
snprintf(args->errmsg, args->errmsg_len,
"per vrf only one bgp instance is supported.");
return NB_ERR_VALIDATION;
}
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp
*/
int bgp_router_create(struct nb_cb_create_args *args)
{
const struct lyd_node *vrf_dnode;
struct bgp *bgp;
struct vrf *vrf;
const char *name = NULL;
as_t as;
enum bgp_instance_type inst_type;
bool is_view_inst = false;
int ret;
int is_new_bgp = 0;
inst_type = BGP_INSTANCE_TYPE_DEFAULT;
switch (args->event) {
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
vrf_dnode = yang_dnode_get_parent(args->dnode,
"control-plane-protocol");
vrf = nb_running_get_entry(vrf_dnode, NULL, true);
if (strmatch(vrf->name, VRF_DEFAULT_NAME)) {
name = NULL;
} else {
name = vrf->name;
inst_type = BGP_INSTANCE_TYPE_VRF;
}
as = yang_dnode_get_uint32(args->dnode, "./global/local-as");
is_view_inst = yang_dnode_get_bool(
args->dnode, "./global/instance-type-view");
if (is_view_inst)
inst_type = BGP_INSTANCE_TYPE_VIEW;
if (inst_type == BGP_INSTANCE_TYPE_DEFAULT)
is_new_bgp = (bgp_lookup(as, name) == NULL);
ret = bgp_get_vty(&bgp, &as, name, inst_type);
if (ret == BGP_ERR_INSTANCE_MISMATCH) {
snprintf(
args->errmsg, args->errmsg_len,
"BGP instance name and AS number mismatch\nBGP instance is already running; AS is %u, input-as %u",
bgp->as, as);
return NB_ERR_INCONSISTENCY;
}
/*
* If we just instantiated the default instance, complete
* any pending VRF-VPN leaking that was configured via
* earlier "router bgp X vrf FOO" blocks.
*/
if (is_new_bgp && inst_type == BGP_INSTANCE_TYPE_DEFAULT)
vpn_leak_postchange_all();
if (inst_type == BGP_INSTANCE_TYPE_VRF)
bgp_vpn_leak_export(bgp);
UNSET_FLAG(bgp->vrf_flags, BGP_VRF_AUTO);
nb_running_set_entry(args->dnode, bgp);
break;
}
return NB_OK;
}
int bgp_router_destroy(struct nb_cb_destroy_args *args)
{
struct bgp *bgp;
switch (args->event) {
case NB_EV_VALIDATE:
bgp = nb_running_get_entry(args->dnode, NULL, false);
if (!bgp)
return NB_OK;
if (bgp->l3vni) {
snprintf(args->errmsg, args->errmsg_len,
"Please unconfigure l3vni %u", bgp->l3vni);
return NB_ERR_VALIDATION;
}
/* Cannot delete default instance if vrf instances exist */
if (bgp->inst_type == BGP_INSTANCE_TYPE_DEFAULT) {
struct listnode *node;
struct bgp *tmp_bgp;
for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, tmp_bgp)) {
if (tmp_bgp->inst_type
== BGP_INSTANCE_TYPE_VRF) {
snprintf(
args->errmsg, args->errmsg_len,
"Cannot delete default BGP instance. Dependent VRF instances exist\n");
return NB_ERR_VALIDATION;
}
}
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_unset_entry(args->dnode);
bgp_vpn_leak_unimport(bgp);
bgp_delete(bgp);
break;
}
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/local-as
*/
int bgp_global_local_as_modify(struct nb_cb_modify_args *args)
{
struct bgp *bgp;
as_t as;
const struct lyd_node *vrf_dnode;
const char *vrf_name;
const char *name = NULL;
enum bgp_instance_type inst_type;
int ret;
bool is_view_inst = false;
switch (args->event) {
case NB_EV_VALIDATE:
as = yang_dnode_get_uint32(args->dnode, NULL);
inst_type = BGP_INSTANCE_TYPE_DEFAULT;
vrf_dnode = yang_dnode_get_parent(args->dnode,
"control-plane-protocol");
vrf_name = yang_dnode_get_string(vrf_dnode, "./vrf");
if (strmatch(vrf_name, VRF_DEFAULT_NAME)) {
name = NULL;
} else {
name = vrf_name;
inst_type = BGP_INSTANCE_TYPE_VRF;
}
is_view_inst = yang_dnode_get_bool(args->dnode,
"../instance-type-view");
if (is_view_inst)
inst_type = BGP_INSTANCE_TYPE_VIEW;
ret = bgp_lookup_by_as_name_type(&bgp, &as, name, inst_type);
if (ret == BGP_ERR_INSTANCE_MISMATCH) {
snprintf(
args->errmsg, args->errmsg_len,
"BGP instance name and AS number mismatch\nBGP instance is already running; input-as %u",
as);
return NB_ERR_VALIDATION;
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
/* NOTE: handled in bgp_global_create callback, the as change
* will be rejected in validate phase.
*/
as = yang_dnode_get_uint32(args->dnode, NULL);
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (bgp->as != as) {
snprintf(args->errmsg, args->errmsg_len,
"BGP instance is already running; AS is %u",
bgp->as);
return NB_ERR_INCONSISTENCY;
}
break;
}
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/router-id
*/
int bgp_global_router_id_modify(struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
struct in_addr router_id;
bgp = nb_running_get_entry(args->dnode, NULL, true);
yang_dnode_get_ipv4(&router_id, args->dnode, NULL);
bgp_router_id_static_set(bgp, router_id);
return NB_OK;
}
int bgp_global_router_id_destroy(struct nb_cb_destroy_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
struct in_addr router_id;
bgp = nb_running_get_entry(args->dnode, NULL, true);
router_id.s_addr = 0;
bgp_router_id_static_set(bgp, router_id);
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/confederation/identifier
*/
int bgp_global_confederation_identifier_modify(struct nb_cb_modify_args *args)
{
struct bgp *bgp;
as_t as;
switch (args->event) {
case NB_EV_VALIDATE:
as = yang_dnode_get_uint32(args->dnode, NULL);
if (!as) {
snprintf(args->errmsg, args->errmsg_len, "Invalid AS.");
return NB_ERR_VALIDATION;
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_get_entry(args->dnode, NULL, true);
as = yang_dnode_get_uint32(args->dnode, NULL);
bgp_confederation_id_set(bgp, as);
break;
}
return NB_OK;
}
int bgp_global_confederation_identifier_destroy(struct nb_cb_destroy_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
bgp_confederation_id_unset(bgp);
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/confederation/member-as
*/
int bgp_global_confederation_member_as_create(struct nb_cb_create_args *args)
{
as_t my_as, as;
struct bgp *bgp;
int ret;
switch (args->event) {
case NB_EV_VALIDATE:
my_as = yang_dnode_get_uint32(args->dnode,
"../../../global/local-as");
as = yang_dnode_get_uint32(args->dnode, NULL);
if (my_as == as) {
snprintf(
args->errmsg, args->errmsg_len,
"Local member-AS %u not allowed in confed peer list",
my_as);
return NB_ERR_VALIDATION;
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_get_entry(args->dnode, NULL, true);
as = yang_dnode_get_uint32(args->dnode, NULL);
ret = bgp_confederation_peers_add(bgp, as);
if (ret == BGP_ERR_INVALID_AS) {
snprintf(
args->errmsg, args->errmsg_len,
"Local member-AS not alloed in confed peer list");
return NB_ERR_INCONSISTENCY;
}
break;
}
return NB_OK;
}
int bgp_global_confederation_member_as_destroy(struct nb_cb_destroy_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
as_t as;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
as = yang_dnode_get_uint32(args->dnode, NULL);
bgp_confederation_peers_remove(bgp, as);
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/med-config
*/
void bgp_global_med_config_apply_finish(struct nb_cb_apply_finish_args *args)
{
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
bgp_maxmed_update(bgp);
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/med-config/enable-med-admin
*/
int bgp_global_med_config_enable_med_admin_modify(
struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
bgp->v_maxmed_admin = yang_dnode_get_bool(args->dnode, NULL);
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/med-config/max-med-admin
*/
int bgp_global_med_config_max_med_admin_modify(struct nb_cb_modify_args *args)
{
struct bgp *bgp;
uint32_t med_admin_val;
switch (args->event) {
case NB_EV_VALIDATE:
med_admin_val = yang_dnode_get_uint32(args->dnode, NULL);
/* enable_med_admin is required to be enabled for max-med-admin
* non default value.
*/
if (med_admin_val != BGP_MAXMED_VALUE_DEFAULT
&& !yang_dnode_get_bool(args->dnode,
"../enable-med-admin")) {
snprintf(args->errmsg, args->errmsg_len,
"enable med admin is not set");
return NB_ERR_VALIDATION;
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_get_entry(args->dnode, NULL, true);
med_admin_val = yang_dnode_get_uint32(args->dnode, NULL);
bgp->maxmed_admin_value = med_admin_val;
break;
}
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/med-config/max-med-onstart-up-time
*/
int bgp_global_med_config_max_med_onstart_up_time_modify(
struct nb_cb_modify_args *args)
{
struct bgp *bgp;
switch (args->event) {
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_get_entry(args->dnode, NULL, true);
bgp->v_maxmed_onstartup =
yang_dnode_get_uint32(args->dnode, NULL);
break;
}
return NB_OK;
}
int bgp_global_med_config_max_med_onstart_up_time_destroy(
struct nb_cb_destroy_args *args)
{
struct bgp *bgp;
switch (args->event) {
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_get_entry(args->dnode, NULL, true);
/* Cancel max-med onstartup if its on */
if (bgp->t_maxmed_onstartup) {
THREAD_TIMER_OFF(bgp->t_maxmed_onstartup);
bgp->maxmed_onstartup_over = 1;
}
bgp->v_maxmed_onstartup = BGP_MAXMED_ONSTARTUP_UNCONFIGURED;
/* Resetting onstartup value as part of dependent node is
* detroyed.
*/
bgp->maxmed_onstartup_value = BGP_MAXMED_VALUE_DEFAULT;
break;
}
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/med-config/max-med-onstart-up-value
*/
int bgp_global_med_config_max_med_onstart_up_value_modify(
struct nb_cb_modify_args *args)
{
struct bgp *bgp;
uint32_t onstartup_val;
switch (args->event) {
case NB_EV_VALIDATE:
onstartup_val = yang_dnode_get_uint32(args->dnode, NULL);
if (!yang_dnode_exists(args->dnode,
"../max-med-onstart-up-time")
&& onstartup_val != BGP_MAXMED_VALUE_DEFAULT) {
snprintf(args->errmsg, args->errmsg_len,
"max-med-onstart-up-time is not set.");
return NB_ERR_VALIDATION;
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_get_entry(args->dnode, NULL, true);
bgp->maxmed_onstartup_value =
yang_dnode_get_uint32(args->dnode, NULL);
break;
}
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-reflector/route-reflector-cluster-id
*/
int bgp_global_route_reflector_route_reflector_cluster_id_modify(
struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
struct in_addr cluster_id;
const struct lyd_node_leaf_list *dleaf;
bgp = nb_running_get_entry(args->dnode, NULL, true);
dleaf = (const struct lyd_node_leaf_list *)args->dnode;
if (dleaf->value_type == LY_TYPE_STRING)
yang_dnode_get_ipv4(&cluster_id, args->dnode, NULL);
else
(void)inet_aton(dleaf->value_str, &cluster_id);
bgp_cluster_id_set(bgp, &cluster_id);
if (bgp_clear_star_soft_out(bgp->name, args->errmsg, args->errmsg_len))
return NB_ERR_INCONSISTENCY;
return NB_OK;
}
int bgp_global_route_reflector_route_reflector_cluster_id_destroy(
struct nb_cb_destroy_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
bgp_cluster_id_unset(bgp);
if (bgp_clear_star_soft_out(bgp->name, args->errmsg, args->errmsg_len))
return NB_ERR_INCONSISTENCY;
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-reflector/no-client-reflect
*/
int bgp_global_route_reflector_no_client_reflect_modify(
struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (yang_dnode_get_bool(args->dnode, NULL))
SET_FLAG(bgp->flags, BGP_FLAG_NO_CLIENT_TO_CLIENT);
else
UNSET_FLAG(bgp->flags, BGP_FLAG_NO_CLIENT_TO_CLIENT);
if (bgp_clear_star_soft_out(bgp->name, args->errmsg, args->errmsg_len))
return NB_ERR_INCONSISTENCY;
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-reflector/allow-outbound-policy
*/
int bgp_global_route_reflector_allow_outbound_policy_modify(
struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (yang_dnode_get_bool(args->dnode, NULL))
SET_FLAG(bgp->flags, BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY);
else
UNSET_FLAG(bgp->flags, BGP_FLAG_RR_ALLOW_OUTBOUND_POLICY);
update_group_announce_rrclients(bgp);
if (bgp_clear_star_soft_out(bgp->name, args->errmsg, args->errmsg_len))
return NB_ERR_INCONSISTENCY;
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-selection-options
*/
void bgp_global_route_selection_options_apply_finish(
struct nb_cb_apply_finish_args *args)
{
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
bgp_recalculate_all_bestpaths(bgp);
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-selection-options/always-compare-med
*/
int bgp_global_route_selection_options_always_compare_med_modify(
struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (yang_dnode_get_bool(args->dnode, NULL))
SET_FLAG(bgp->flags, BGP_FLAG_ALWAYS_COMPARE_MED);
else
UNSET_FLAG(bgp->flags, BGP_FLAG_ALWAYS_COMPARE_MED);
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-selection-options/deterministic-med
*/
int bgp_global_route_selection_options_deterministic_med_modify(
struct nb_cb_modify_args *args)
{
struct bgp *bgp;
int bestpath_per_as_used;
afi_t afi;
safi_t safi;
struct peer *peer;
struct listnode *node;
switch (args->event) {
case NB_EV_VALIDATE:
bgp = nb_running_get_entry(args->dnode, NULL, false);
if (!bgp)
return NB_OK;
/* for deconfiguring deterministic-med case */
if (!yang_dnode_get_bool(args->dnode, NULL)
&& CHECK_FLAG(bgp->flags, BGP_FLAG_DETERMINISTIC_MED)) {
bestpath_per_as_used = 0;
for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) {
FOREACH_AFI_SAFI (afi, safi)
if (bgp_addpath_dmed_required(
peer->addpath_type[afi]
[safi])) {
bestpath_per_as_used = 1;
break;
}
if (bestpath_per_as_used)
break;
}
if (bestpath_per_as_used) {
snprintf(
args->errmsg, args->errmsg_len,
"bgp deterministic-med cannot be disabled while addpath-tx-bestpath-per-AS is in use");
return NB_ERR_VALIDATION;
}
}
break;
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (yang_dnode_get_bool(args->dnode, NULL))
SET_FLAG(bgp->flags, BGP_FLAG_DETERMINISTIC_MED);
else
UNSET_FLAG(bgp->flags, BGP_FLAG_DETERMINISTIC_MED);
break;
}
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-selection-options/confed-med
*/
int bgp_global_route_selection_options_confed_med_modify(
struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (yang_dnode_get_bool(args->dnode, NULL))
SET_FLAG(bgp->flags, BGP_FLAG_MED_CONFED);
else
UNSET_FLAG(bgp->flags, BGP_FLAG_MED_CONFED);
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-selection-options/missing-as-worst-med
*/
int bgp_global_route_selection_options_missing_as_worst_med_modify(
struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (yang_dnode_get_bool(args->dnode, NULL))
SET_FLAG(bgp->flags, BGP_FLAG_MED_MISSING_AS_WORST);
else
UNSET_FLAG(bgp->flags, BGP_FLAG_MED_MISSING_AS_WORST);
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-selection-options/aspath-confed
*/
int bgp_global_route_selection_options_aspath_confed_modify(
struct nb_cb_modify_args *args)
{
switch (args->event) {
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
case NB_EV_APPLY:
/* TODO: implement me. */
break;
}
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-selection-options/ignore-as-path-length
*/
int bgp_global_route_selection_options_ignore_as_path_length_modify(
struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (yang_dnode_get_bool(args->dnode, NULL))
SET_FLAG(bgp->flags, BGP_FLAG_ASPATH_IGNORE);
else
UNSET_FLAG(bgp->flags, BGP_FLAG_ASPATH_IGNORE);
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-selection-options/external-compare-router-id
*/
int bgp_global_route_selection_options_external_compare_router_id_modify(
struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (yang_dnode_get_bool(args->dnode, NULL))
SET_FLAG(bgp->flags, BGP_FLAG_COMPARE_ROUTER_ID);
else
UNSET_FLAG(bgp->flags, BGP_FLAG_COMPARE_ROUTER_ID);
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-selection-options/allow-multiple-as
*/
int bgp_global_route_selection_options_allow_multiple_as_modify(
struct nb_cb_modify_args *args)
{
struct bgp *bgp;
switch (args->event) {
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (yang_dnode_get_bool(args->dnode, NULL)) {
SET_FLAG(bgp->flags, BGP_FLAG_ASPATH_MULTIPATH_RELAX);
if (yang_dnode_get_bool(args->dnode,
"../multi-path-as-set")) {
SET_FLAG(bgp->flags,
BGP_FLAG_MULTIPATH_RELAX_AS_SET);
}
} else {
UNSET_FLAG(bgp->flags, BGP_FLAG_ASPATH_MULTIPATH_RELAX);
/* unset as-set */
UNSET_FLAG(bgp->flags, BGP_FLAG_MULTIPATH_RELAX_AS_SET);
}
break;
}
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/route-selection-options/multi-path-as-set
*/
int bgp_global_route_selection_options_multi_path_as_set_modify(
struct nb_cb_modify_args *args)
{
struct bgp *bgp;
switch (args->event) {
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_get_entry(args->dnode, NULL, true);
if (!CHECK_FLAG(bgp->flags, BGP_FLAG_MULTIPATH_RELAX_AS_SET)) {
SET_FLAG(bgp->flags, BGP_FLAG_MULTIPATH_RELAX_AS_SET);
} else
zlog_debug(
"%s multi-path-as-set as part of allow-multiple-as modify cb.",
__func__);
break;
}
return NB_OK;
}
int bgp_global_route_selection_options_multi_path_as_set_destroy(
struct nb_cb_destroy_args *args)
{
struct bgp *bgp;
switch (args->event) {
case NB_EV_VALIDATE:
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
case NB_EV_APPLY:
bgp = nb_running_get_entry(args->dnode, NULL, true);
/* Only unset if it set, it is possible allow_multiple_as_modify
* unset this.
*/
if (CHECK_FLAG(bgp->flags, BGP_FLAG_MULTIPATH_RELAX_AS_SET)) {
UNSET_FLAG(bgp->flags, BGP_FLAG_MULTIPATH_RELAX_AS_SET);
bgp_recalculate_all_bestpaths(bgp);
}
break;
}
return NB_OK;
}
/*
* XPath:
* /frr-routing:routing/control-plane-protocols/control-plane-protocol/frr-bgp:bgp/global/global-neighbor-config/dynamic-neighbors-limit
*/
int bgp_global_global_neighbor_config_dynamic_neighbors_limit_modify(
struct nb_cb_modify_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
uint32_t listen_limit;
bgp = nb_running_get_entry(args->dnode, NULL, true);
listen_limit = yang_dnode_get_uint32(args->dnode, NULL);
bgp_listen_limit_set(bgp, listen_limit);
return NB_OK;
}
int bgp_global_global_neighbor_config_dynamic_neighbors_limit_destroy(
struct nb_cb_destroy_args *args)
{
if (args->event != NB_EV_APPLY)
return NB_OK;
struct bgp *bgp;
bgp = nb_running_get_entry(args->dnode, NULL, true);